Nasal cannula



1. Nasal cannula

1.1 is a front view.

1.2 is a rear view.

1.3 is a left side view.

1.4 is a right side view.

1.5 is a top view.

1.6 is a bottom view.

1.7 is a perspective view. 

CLAIM The ornamental design for a nasal cannula, as shown and described. 